Schwannomas are tumours that arise from the myelin sheath of the nerves. A very unusual location for schwannoma is the retro peritoneal areas (less than 2%). We present herewith a patient who had a 4x5cm Schwannoma arising from the nerve root of L2 on the right side. which presented as a lump in the psoas major muscle. https://www.sharemaza.com/product-category/quickstrikes/